Woodworking machine



July 18, 1939.

c. wAzAc. SR 2,166,831

WOODWORKING MACHINE 2 Sheets-Sheet 1 Filed April 12, 1958 1 furl Mazda, .57:

July 18, .1939. Q A R 2,166,831

' WOODWORKING MACHINE Filed April 12, 1938 2 Sheets-Sheet 2 LllLonwu UNITED STATES QPATENT OFFICE W0 ODWORKING MACHINE Carl Wazac, Sr.,

Lost Nation, Iowa Application April 12, 1938, Serial No. 201,607

3 Claims.

This invention relates to a wood working machine, and it is a particular object of the invention to provide a machine of this kind which can be employed to advantage in cutting mortises.

It is also an object of the invention to provide a machine of this kind which is particularly adapted for the home craftsman or for use in small wood working shops and wherein the machine is of a type which has no parts to break or easily wear out.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved wood working machine whereby certain important advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein:

Figure 1 is a view in top plan of a wood working machine constructed in accordance with an embodiment of my invention;

Figure 2 is a vertical sectional view taken substantially on the line 2-2 of Figure 1;

Figure 3 is a vertical sectional view taken substantially on the line 3-3 of Figure 1;

Figure 4 is a fragmentary view in rear elevation illustrating in detail the mounting of the motor table as herein comprised.

As disclosed in the accompanying drawings, P

- denotes a pedestal of desired dimensions which is adapted to be rested upon any desired supporting surface, such as a work bench or upon a floor. Rigidly secured to the top of the pedestal P is an elongated platform A and depending from one end portion of the platform A is a pair of vertically disposed sleeves l the bore of each of which is extended up through the adjacent portion of the platform A. snugly engaging through these sleeves l are the elongated rods 2 depending from a motor table 3.

These rods .2 hold the table 3 in applied position and are of a length suflicient to allow for an up and down adjustment of the table 3, the extent of upward movement being determined by the outstanding stop members 4 carried by the lower portions of the rods 2 for contact with the lower ends of the sleeves l. The table 3 may be vertically adjusted and maintained in desired selective adjustment in any manner preferred but, as here,-

in disclosed, I provide a screw member 5 threading upwardly through the platform A at a point midway of the sleeves l. The upper end portion of this screw member 5 is preferably swivelled, as at 6, to the under surface of the table 3.

Resting on the table 3 is a motor M preferably of an electrical type and which includes a base i extending laterally beyond opposite sides of the motor casing. The extended portions of the base 1 are provided with the slots 8 disposed in a direction parallel to the axis of the motor M and extending upwardly through these slots 8 are the threaded members 9 carried by the table 3. Engaged with the members 9 for clamping engagement with the extended portions of the base 1 are the nuts 10. By this means the motor M may, when required, be selectively adjusted toward or from the work carriage C to be hereinafter more particularly referred to. At this time it is to be particularly mentioned that the carriage C is so supported that when the motor M is at its lowermost position the mortising bit H carried by the chuck [2 of the motor barely clears the upper surface of the carriage C when such carriage is at the limit of its movement toward the motor M.

The rear portion of the platform A or that portion remote from the motor M is provided transversely thereacross with upstanding parallel blocks 14 spaced apart in a direction lengthwise of the platform A. These blocks I4 fixedly carry the cylindrical track bars l5 extending a desired distance beyond the opposite sides of the platform A and also above the blocks I4. Slidably mounted upon these track bars I5 is an under carriage B of desired dimensions and which has at its opposite end portions the depending bearing blocks I6 provided in their under surfaces with the grooves IT to receive the upper portions of the track bars 15 and disposed along the apices or high points of these grooves I1 is a relief slot l8. The track bars l5 are disposed in a direction at right angles to the axis of the motor M and the central portion of the carriage B has depending therefrom a pair of spaced lugs [9 between which is directed an elongated lever 20 pivoted at one end, as at 2 l to an upstanding block 22 carried by the platform A between the table 3 and the adjacent track bar l5. This lever 20 is of a length to extend a sufficient distance outwardly beyond the under carriage B to readily permit manual operation of the lever to move the carriage B in either direction desired along the track bars I5.

The carriage B is effectively held upon the track bars I5 by the bearing members 23 engaging the track bars l5 from below and detachably secured, as at 24, to the under surface of the carriage B.

The opposite end portions of the carriage B are provided with the upstanding blocks 25 which rigidly carry the track bars 26 in perpendicular relation to the track bars l5. These bars 26 extend a material distance beyond the opposite sides of the carriage B and have associated therewith the top or working carriage C hereinbefore referred to. This carriage C at its opposite end portions is provided with the depending bearing blocks 21 provided in their bottom surfaces with the V-grooves 28 which receive the upper portions of the bars 26, and the apices or high points of these grooves 28 are provided with the clearance slots 29. The carriage C is held to the track bars 26 by the bearing members 38 engaging said bars 26 from below and detaohably secured, as at 3|, to the under surface of the carriage C.

The central portion of the carriage C has depending therefrom the spaced lugs 34 between which passes an elongated lever 35, one end portion of which is pivotally connected, as at 36, to an upstanding block 31 positioned at one end portion of the carriage B. This lever 35 is of a length to extend a distance beyond the opposite end of the carriage C and also of the carriage B so that said lever may be manually operated to move the carriage C as desired along the track bars 26. The movement of the carriage C toward the motor M determines the depth of the mortise out in the work while of course the movement of the carriage B determines the length of such out in the work.

The carriage C has disposed transversely through its opposite end portions or in the same general direction as its path of travel, the slots 38 through which are directed from below the headed members 39. The lower portions of these slots are widened to receive and house the heads 48 of said members 39. These members 39 also extend up through the slots 4| provided in the base flange 42 defining the lower marginal portion of an elongated work fence or stop 43. This flange 42 is disposed in a direction away from the motor M.

Engaging the members 39 from above for clamping action on the flange 42 are the nuts 44 whereby the fence or stop 43 may be selectively held in desired adjustment. It is believed to be obvious that the slots 38 and the slots 4| permit the fence or stop 43 to be adjusted as desired with respect to the motor M or more particularly the cutting bit and the slots 38 are preferably of a length to permit the fence or stop 43 to be adjusted on an. angle up to 33.

The work into which a mortise is to be cut is placed upon the carriage C against the fence or stop 43 and the work is maintained in proper position upon the carriage C and against the fence or stop 43 by a hold down plate or member 45. This member or plate 45 is in swivelled connection with the lower end portion of an elongated stem 46 which threads up through a sleeve 4'! carried by the outer end portion of an elongated rod 48. The bore of this sleeve 41 is at right angles to the rod 48. The stem 46 above the sleeve 4'! has fixed thereto a hand wheel 49 whereby the hold down member or plate 45 may be readily applied to or disengaged from the work.

The elongated rod 48 is freely directed through a member 58 which is slidably mounted upon a vertically disposed post 5| carried by the central portion of the flange 42 of the fence or stop member 43. This member 50 has threading therein a holding screw 52 to clamp the rod 48 in its selective adjustments and said member 58 also has threading therein a second clamping screw 53 for coaction with the post 5| to hold said member 50 in its desired selective adjustments.

From the foregoing description it is thought to be obvious that a wood working machine constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

I claim:

1. A wood working machine comprising a platform, upstanding blocks carried by the platform, parallel track bars fixedly mounted upon the blocks, a carriage, bearing members depending from the carriage and freely engaging the track bars to allow the carriage to be moved lengthwise of the track bars, a lever pivotally connected to the platform at one side of the track bars and extending across said track bars beneath the carriage, spaced lugs depending from the carriage between which the lever is directed so that the carriage may be moved in either direction lengthwise of the track bars upon proper swinging movement of the lever, a second carriage mounted upon the first carriage for movement in a direction substantially at right angles to the path of travel of the first carriage as determined by the track bars, means for moving said second carriage in opposite directions, and holding means carried by the second carriage.

2. A wood working machine comprising a platform, upstanding blocks carried by the platform, parallel track bars fixedly mounted upon the blocks, a carriage, bearing members depending from the carriage and freely engaging the track bars to allow the carriage to be moved lengthwise of the track bars, a lever pivotally connected to the platform at one side of the track bars and extending across said track bars beneath the carriage, spaced lugs depending from the carriage between which the lever is directed so that the carriage may be moved in either direction lengthwise of the track bars upon proper swinging movement of the lever, upstanding blocks carried by the opposite end portions of the carriage, parallel track bars supported by said last named blocks and disposed in a direction substantially at right angles to the first named track bars, a second carriage, bearings depending from the second carriage and engaging the second track bars to support the second carriage for sliding movement in either direction along the second track bars, spaced lugs depending from the sec- 0nd carriage, a second lever pivotally mounted on the first carriage and extending between the lugs of the second carriage, swinging movement of the second lever coacting with the lugs of the second carriage to move the second carriage lengthwise of the second track bars, and work holding means on the second carriage.

3. A wood working machine comprising a platform, upstanding blocks carried by the platform, parallel track bars fixedly mounted upon the blocks, a carriage, bearing members depending from the carriage and freely engaging the track bars to allow the carriage to be moved lengthwise of the track bars, a lever pivotally connected to the platform at one side of the track bars and extending across said track bars beneath the carriage, spaced lugs depending from the carriage between which the lever is directed so that the carriage may be moved in either direction lengthwise of the track bars upon proper swinging movement of the lever, upstanding blocks carried by the opposite end portions of the carriage, parallel track bars supported by said last named blocks and disposed in a direction substantially at right angles to the first named track bars, a second carriage, bearings depending from the second carriage and engaging the second track bars to support the second carriage for sliding movement in either direction along the second track bars, spaced lugs depending from the second carriage, a second lever pivotally mounted on the first carriage and extending between the lugs of the second carriage, swinging movement of the second lever coacting with the lugs of the second carriage to move the second carriage lengthwise of the second track bars, and work holding means on the second carriage, the upstanding blocks of the carriage being substantially midway of the second track bars, the bearings depending from the second carriage engaging the second track bars at opposite sides of said upstanding blocks.

CARL WAZAC, SR. 

